What this MCCB does on the line
The Siemens 3VA1116-5EE32-0DH0 is a SENTRON molded case circuit breaker (MCCB) sized for 160 A continuous duty — that's the rated current Iu, and it holds that rating from 40 °C all the way up to 50 °C before it starts to derate (153.6 A at 55 °C, 150.4 A at 60 °C, 147.2 A at 65 °C, and 144 A at 70 °C). Three poles, line-protection version, with a TM220 thermal-magnetic trip unit inside. The interrupting ratings are what you'd spec around: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V. That's serious fault-current headroom for a 160 A frame — it'll clear a hard short without the arc climbing upstream.
Footprint and fit
The breaker measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint for this current class. It's a panel-mount unit with screw terminals; no DIN-rail clip on this frame size. If you're swapping from a different 160 A MCCB, check the mounting hole pattern and the bus-bar spacing; the 76.2 mm width is common for 3-pole breakers in this range, but verify the line and load lug centers against your existing buswork.